Grases Fèlix, Costa-Bauzá Antonia, Prieto Rafel M, Servera Antonio
Laboratory of Renal Lithiasis Research, Faculty of Sciences, Universitary Institute of Health Sciences Research (IUNICS), University of Balearic Islands, Palma de Mallorca, Spain.
Laboratory of Renal Lithiasis Research, Faculty of Sciences, Universitary Institute of Health Sciences Research (IUNICS), University of Balearic Islands, Palma de Mallorca, Spain; Hospital de Manacor, IB-Salut, Manacor, Spain.
Urol Case Rep. 2014 Feb 5;2(2):51-3. doi: 10.1016/j.eucr.2013.12.011. eCollection 2014 Mar.
We describe the case of a patient with calcium oxalate monohydrate and calcium oxalate dihydrate calculi occluded in cavities. All those calculi were located inside narrow cavities covered with a thin epithelium that permits their visualization. Urinary biochemical analysis showed high calciuria, not hypercalciuria, hypocitraturia, and a ratio [calcium]/[citrate] >0.33. The existence of cavities of very low urodynamic efficacy was decisive in the formation of such calculi. It is important to emphasize that we observed a thin epithelium covering such cavities, demonstrating that this epithelium may be formed after the development of the calculi through a re-epithelialization process.
